15 of 15 Permanent Data Scientist Jobs in Hertfordshire

Opportunity MUST HAVE VALID UK WORKING VISA. We're looking for a talented Data Scientist to join a growing data and analytics team, helping turn complex datasets into meaningful insights and predictive solutions. This is an excellent opportunity for a mid-level Data Scientist who enjoys solving real-world business problems and wants the opportunity to work across machine learning, statistical analysis and data-driven decision-making. Key Responsibilities Develop and deploy machine learning and statistical models to solve business problems. Analyse large and complex datasets to identify trends, patterns and opportunities. ...

roleThis is a hands-on position where you will need to leverage your analytical mindset to find solutions to complex problems. As a Senior Data Scientist, you will need to understand difficult business problems and prototype solutions with minimal support.A core component of the role is applying, modifying … designing algorithms and mathematical models to solve business problems using big data architectures (Hadoop, Spark, Cloud). In this role, your primary focus will be forecasting and related statistical or probabilistic modelling, with a strong emphasis on rigorous evaluation against robust baselines, careful validation, and scalable deployment.Our Data ...

Senior Scientist****UK Remote-First (Occasional travel to head office or park)****Annual salary + bonus and benefits**At Haven, data helps us create brighter experiences for our guests and our teams. As a Data Scientist, you’ll play a key role in turning data … building machine learning models and analytical solutions that help us make better, more informed decisions across the business. You’ll work across the full data science journey, from exploring and experimenting with rich datasets to deploying robust, scalable solutions into production. Working closely with colleagues across engineering, product ...

Senior Data Scientist | Hatfield | Hybrid Please note: Candidates must already have the right to work in the UK; this position is not eligible for visa sponsorship now or in the future. Why Ocado? Here at Ocado Logistics it’s our mission to provide an outstanding customer experience … scenes within the warehouses and across the front end of the customer experience which means we now have an opportunity for a Senior Data Scientist to join the Team on a 12 month FTC. This role forms part of the Ocado Logistics' Data Science team and will ...

Senior Scientist UK Remote-First (Occasional travel to head office or park) Annual salary + bonus and benefits At Haven, data helps us create brighter experiences for our guests and our teams. As a Data Scientist, you’ll play a key role in turning data … building machine learning models and analytical solutions that help us make better, more informed decisions across the business. You’ll work across the full data science journey, from exploring and experimenting with rich datasets to deploying robust, scalable solutions into production. Working closely with colleagues across engineering, product ...

## Senior Data Scientist - AI & Machine LearningApply: Welwyn: Full time: Posted Today: End Date: October 19, 2026 (6 days left to apply): 202610-124942At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine … transforming healthcare by embedding advanced AI and machine learning into the heart of our commercial and medical strategies. As a Senior Data Scientist, you will architect cutting-edge AI frameworks, transform vast enterprise data into actionable insights, and help double the number of patients accessing life-changing ...

Opportunity MUST HAVE VALID UK WORKING VISA. We're looking for a talented Data Scientist to join a growing data and analytics team, helping turn complex datasets into meaningful insights and predictive solutions. This is an excellent opportunity for a mid-level Data Scientist ...

transforming healthcare by embedding advanced AI and machine learning into the heart of our commercial and medical strategies. As a Senior Data Scientist, you will architect cutting-edge AI frameworks, transform vast enterprise data into actionable insights, and help double the number of patients accessing life-changing … future of tech-enabled patient care. The Opportunity Architect Enterprise AI: Lead the end-to-end development of advanced machine learning models, from exploratory data analysis and feature engineering to production deployment. Drive Next-Gen Innovation: Prototype state-of-the-art AI solutions, including Generative AI, RAG systems ...

Roche UK in Welwyn Garden City is seeking a Senior Data Scientist to architect AI frameworks, transform enterprise data into actionable insights, and advance patient care with tech-enabled solutions. You will lead end-to-end model development, prototype Generative AI and ML solutions, collaborate with data engineers, and mentor data science colleagues while translating complex results into business value for senior stakeholders. #J-18808-Ljbffr ...

Haven is seeking a Senior Scientist to turn data into insight by building and deploying machine learning models and analytical solutions across the business. You’ll work end-to-end from data exploration to production, collaborating with engineering, product and operations to translate questions into measurable impact. … partner with a Senior Data Scientist for guidance, bring curiosity, and own day-to-day modelling while delivering reliable outputs that drive decisions. #J-18808-Ljbffr ...

Costa Coffee is looking for a Data Scientist to turn complex data into meaningful business insights. You’ll build predictive models, create data pipelines and deliver dashboards that influence commercial and operational decisions. Join a flexible, collaborative team moving toward a new UK-based Support Centre … Albans. You’ll work with Python, PySpark, SQL, Azure and Databricks in a modern data environment, communicating clearly with both technical and non-technical colleagues to drive value. #J-18808-Ljbffr ...

Roche UK in Welwyn Garden City seeks a Senior Data Scientist to architect enterprise AI, transform vast data into actionable insights, and help expand patient access to medicines. Lead end-to-end ML development from data exploration to production deployment in collaboration with commercial and medical ...

Haven is seeking a Senior Data Scientist for a UK remote-first role with occasional travel to our Hemel Hempstead head office or Haven parks. You will own end-to-end ML model development, deploy analytical solutions, and work with cross-functional teams to translate business questions into … insights that drive decision-making. The role requires hands-on ML, Python and SQL skills, about two years in data science, and the ability to collaborate across engineering, product and operations. #J-18808-Ljbffr ...

Ocado Group is seeking a Senior Data Scientist in Hatfield on a hybrid basis for a 12-month FTC. The role focuses on reducing order damages and improving NPS by consolidating data sources, bridging gaps, and applying advanced statistics and ML. You will deliver insights to guide … operational investments and strategic decisions. You will work with cross-functional teams to scope, plan, and deliver outputs, mentoring junior data scientists and communicating results to stakeholders. #J-18808-Ljbffr ...

Tesco UK is seeking a Senior Data Scientist to design and deploy forecasting and probabilistic models for large-scale retail time series. You will blend data from multiple sources and build robust pipelines for training, validation and backtesting, ensuring scalable, measurable business value. You will mentor juniors … promote data science across the organisation, and collaborate closely with engineering, product and business partners in a hybrid UK-based role. #J-18808-Ljbffr ...